122212423 has 4 divisors (see below), whose sum is σ = 124283880. Its totient is φ = 120140968.

The previous prime is 122212421. The next prime is 122212451. The reversal of 122212423 is 324212221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122212423 - 2¹ = 122212421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122212423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035640 + ... + 1035757.

It is an arithmetic number, because the mean of its divisors is an integer number (31070970).

Almost surely, 2^122212423 is an apocalyptic number.

122212423 is a deficient number, since it is larger than the sum of its proper divisors (2071457).

122212423 is an equidigital number, since it uses as much as digits as its factorization.

122212423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071456.

The product of its digits is 384, while the sum is 19.

The square root of 122212423 is about 11054.9727724676. The cubic root of 122212423 is about 496.2552544455.

Adding to 122212423 its reverse (324212221), we get a palindrome (446424644).

The spelling of 122212423 in words is "one hundred twenty-two million, two hundred twelve thousand, four hundred twenty-three".